Omron CQM1H-CLK21 - Manual (Page 233)

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Commands and Responses for Controller Link Units Section 6-5
6-5-10 BROADCAST TEST DATA SEND
Broadcasts test data to all nodes in a specified network.
Command Block
There is no response to this command.
The control data must be set as follows when this command is issued:
Destination node address: FF (Hex) (for broadcasting the data)
Destination unit address: FE (Hex) (for the Controller Link Unit)
Response required/not required: 1 (response not required)
The transmission and reception status is checked by comparing the number
of times this command is issued with the number of receptions parameter of
the BROADCAST TEST RESULTS READ command. (For details, refer to 6-5-
9 BROADCAST TEST RESULTS READ.
6-5-11 ERROR LOG READ
Reads the PLC’s error log.
Command Block
Response Block
Parameters Beginning record no. (command): Specifies the first record to be read, in
two bytes (four digits) in hexadecimal. (The first record number is 0000 in
hexadecimal. Designate the record number within a range of 0000 to 0026 in
hexadecimal (decimal: 0 to 38)).
No. of records (command and response): Specifies the number of records
to be read, within a range of 0001 to 0027 in hexadecimal (decimal: 1 to 39).
The response gives the number of records actually read.
Max. no. of stored records (response): Specifies the maximum number of
records that can be recorded, within a range of 0001 to 0027 in hexadecimal
(decimal: 1 to 39).
No. of stored records (response): The number of records that have been
recorded by the time the command is executed. The response will be given
within a range of 0001 to 0027 hexadecimal (decimal: 1 to 39).
Error log data (response): The specified error log records are returned in
sequence starting from the beginning record number. The total number of
bytes required is calculated as follows:
No. of records x 10 bytes
Command
code
Test data
2,000 bytes
max. 08 03
Command
code
02 21
Beginning
record no.
No. of
records
02 21
Max. no. of
stored records
No. of
stored
records
No. of
records
Error log
data
Error log
data
Response
code
Command
code
10 bytes 10 bytes